21784174

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{313}}^1$

素因数の和:444

約数の個数: 32

約数和(自身を含む): 36624960

約数和(自身を除く): 14840786

約数列:

[1, 2, 17, 23, 34, 46, 89, 178, 313, 391, 626, 782, 1513, 2047, 3026, 4094, 5321, 7199, 10642, 14398, 27857, 34799, 55714, 69598, 122383, 244766, 473569, 640711, 947138, 1281422, 10892087, 21784174]

約数ペア:

[(1, 21784174), (2, 10892087), (17, 1281422), (23, 947138), (34, 640711), (46, 473569), (89, 244766), (178, 122383), (313, 69598), (391, 55714), (626, 34799), (782, 27857), (1513, 14398), (2047, 10642), (3026, 7199), (4094, 5321)]